<template>
  <div>
    <data-table
      ref="pagingTable"
      :options="options"
      :list-query="listQuery"
      @multi-actions="handleMultiAction"
    >
      <template #filter-content>
        <el-row>
          <el-col :span="24">
            <el-select
              v-model="listQuery.params.quType"
              class="filter-item"
              clearable
            >
              <el-option
                v-for="item in quTypes"
                :key="item.value"
                :label="item.label"
                :value="item.value"
              />
            </el-select>

            <repo-select v-model="listQuery.params.repoIds" :multi="true" />

            <el-input
              v-model="listQuery.params.content"
              placeholder="题目内容"
              style="width: 200px"
              class="filter-item"
            />

            <el-button-group class="filter-item" style="float: right">
              <el-button size="mini" icon="el-icon-upload2" @click="showImport"
                >导入</el-button
              >
              <el-button
                size="mini"
                icon="el-icon-download"
                @click="exportExcel"
                >导出</el-button
              >
            </el-button-group>
          </el-col>
        </el-row>
      </template>

      <template #data-columns>
        <el-table-column label="题目类型" align="center" width="100px">
          <template #default="scope">
            {{ scope.row.quType | quTypeFilter() }}
          </template>
        </el-table-column>

        <el-table-column label="题目内容" show-overflow-tooltip>
          <template #default="scope">
            <router-link
              :to="{ name: 'UpdateQu', params: { id: scope.row.id } }"
            >
              {{ scope.row.content }}
            </router-link>
          </template>
        </el-table-column>

        <el-table-column
          label="创建时间"
          align="center"
          prop="createTime"
          width="180px"
        />
      </template>
    </data-table>

    <el-dialog :title="dialogTitle" v-model:visible="dialogVisible" width="30%">
      <el-form label-position="left" label-width="100px">
        <el-form-item label="操作题库" prop="repoIds">
          <repo-select v-model="dialogRepos" :multi="true" />
        </el-form-item>

        <el-row>
          <el-button type="primary" @click="handlerRepoAction">保存</el-button>
        </el-row>
      </el-form>
    </el-dialog>

    <el-dialog v-model:visible="importVisible" title="导入试题" width="30%">
      <el-row>
        <el-button type="primary" @click="chooseFile">上传导入</el-button>
        <el-button type="warning" @click="downloadTemplate"
          >下载导入模板</el-button
        >
        <input
          ref="upFile"
          class="file"
          name="file"
          type="file"
          style="display: none"
          @change="doImport"
        />
      </el-row>
    </el-dialog>
  </div>
</template>

<script>
import DataTable from "@/components/DataTable/index.vue";
import RepoSelect from "@/components/RepoSelect/index.vue";
import { batchAction } from "@/api/qu/repo.ts";
import { exportExcel, importExcel, importTemplate } from "@/api/qu/qu.ts";

export default {
  name: "QuList",
  components: { RepoSelect, DataTable },
  data() {
    return {
      dialogTitle: "加入题库",
      dialogVisible: false,
      importVisible: false,
      dialogRepos: [],
      dialogQuIds: [],
      dialogFlag: false,

      listQuery: {
        current: 1,
        size: 10,
        params: {
          content: "",
          quType: "",
          repoIds: [],
        },
      },

      quTypes: [
        {
          value: 1,
          label: "单选题",
        },
        {
          value: 2,
          label: "多选题",
        },
        {
          value: 3,
          label: "判断题",
        },
      ],

      options: {
        // 可批量操作
        multi: true,

        // 批量操作列表
        multiActions: [
          {
            value: "add-repo",
            label: "加入题库..",
          },
          {
            value: "remove-repo",
            label: "从..题库移除",
          },
          {
            value: "delete",
            label: "删除",
          },
        ],
        // 列表请求URL
        listUrl: "/api/qu/paging-qu",
        // 删除请求URL
        deleteUrl: "/api/qu/delete",
        // 添加数据路由
        addRoute: "AddQu",
      },
    };
  },
  methods: {
    handleMultiAction(obj) {
      if (obj.opt === "add-repo") {
        this.dialogTitle = "加入题库";
        this.dialogFlag = false;
      }

      if (obj.opt === "remove-repo") {
        this.dialogTitle = "从题库移除";
        this.dialogFlag = true;
      }

      this.dialogVisible = true;
      this.dialogQuIds = obj.ids;
    },

    handlerRepoAction() {
      const postForm = {
        repoIds: this.dialogRepos,
        quIds: this.dialogQuIds,
        remove: this.dialogFlag,
      };

      batchAction(postForm).then(() => {
        this.$notify({
          title: "成功",
          message: "批量操作成功！",
          type: "success",
          duration: 2000,
        });

        this.dialogVisible = false;
        this.$refs.pagingTable.getList();
      });
    },

    exportExcel() {
      // 导出当前查询的数据
      exportExcel(this.listQuery.params);
    },

    downloadTemplate() {
      importTemplate();
    },

    showImport() {
      this.importVisible = true;
    },

    // 只是为了美化一下导入按钮
    chooseFile: function () {
      this.$refs.upFile.dispatchEvent(new MouseEvent("click"));
    },

    doImport(e) {
      const file = e.target.files[0];

      importExcel(file).then((res) => {
        if (res.code !== 0) {
          this.$alert(res.data.msg, "导入信息", {
            dangerouslyUseHTMLString: true,
          });
        } else {
          this.$message({
            message: "数据导入成功！",
            type: "success",
          });

          this.importVisible = false;
          this.$refs.pagingTable.getList();
        }
      });
    },
  },
};
</script>
